Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Dogic, Z."'
Bacterial mobility is powered by rotation of helical flagellar filaments driven by rotary motors. Flagellin isolated from {\it Salmonella Typhimurium} SJW1660 strain, which differs by a point mutation from the wild-type strain, assembles into straigh
Externí odkaz:
http://arxiv.org/abs/1611.04004
Polymer adsorption is a fundamental problem in statistical mechanics that has direct relevance to diverse disciplines ranging from biological lubrication to stability of colloidal suspensions. We combine experiments with computer simulations to inves
Externí odkaz:
http://arxiv.org/abs/1508.01415
Autor:
Huang, F., Addas, K., Ward, A., Flynn, N. T., Velasco, E., Hagan, M. F., Dogic, Z., Fraden, S.
We report on the construction of colloidal stars: 1 micrometer polystyrene beads grafted with a dense brush of 1 micrometer long and 10 nm wide semi-flexible filamentous viruses. The pair interaction potentials of colloidal stars are measured using a
Externí odkaz:
http://arxiv.org/abs/0810.1349
Autor:
Dogic, Z., Zhang, J., Lau, A. W. C., Aranda-Espinoza, H., Dalhaimer, P., Discher, D. E., Janmey, P. A., Kamien, Randall D., Lubensky, T. C., Yodh, A. G.
Publikováno v:
Phys. Rev. Lett. 92 (2004) 125503
We directly visualize single polymers with persistence lengths ranging from $\ell_p=0.05$ to 16 $\mu$m, dissolved in the nematic phase of rod-like {\it fd} virus. Polymers with sufficiently large persistence length undergo a coil-rod transition at th
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401189
The orientational distribution function of the nematic phase of the semi-flexible rod-like virus fd is measured by x-ray diffraction as a function of concentration and ionic strength. The angular distribution of the scattered intensity from a single-
Externí odkaz:
http://arxiv.org/abs/cond-mat/0210030
Publikováno v:
Phil. Tran. R. Soc. Lond. A 359, 997 (2001).
There is increasing evidence that entropy can induce microphase separation in binary fluid mixtures interacting through hard particle potentials. One such phase consists of alternating two dimensional liquid-like layers of rods and spheres. We study
Externí odkaz:
http://arxiv.org/abs/cond-mat/0003500
Publikováno v:
J. Chem. Phys. 113, 8368 (2000)
In the first part of this paper, an approximate theory is developed for the leading order concentration dependence of the sedimentation coefficient for rod-like colloids/polymers/macromolecules. To first order in volume fraction $\phi$ of rods, the s
Externí odkaz:
http://arxiv.org/abs/cond-mat/0003431
Autor:
Dogic, Z., Fraden, S.
Publikováno v:
Langmuir 16, 7820 (2000)
We report measurements of the cholesteric pitch and twist elastic constant $(K_{22})$ in monodisperse suspensions of the rod-like virus filamentous bacteriophage {\it fd}. Measurements were taken for concentrations spanning the entire cholesteric reg
Externí odkaz:
http://arxiv.org/abs/cond-mat/0003434
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